/Engine/Source/Editor/ViewportInteraction/Public/VIGizmoHandle.h
Updates the Gizmo handles, needs to be implemented by derived classes
virtual void UpdateGizmoHandleGroup ( const FTransform & LocalToWorld, const FBox & LocalBounds, const FVector ViewLocation, const bool bAllHandlesVisible, class [UActorComponent](API\Runtime\Engine\Components\UActorComponent) * DraggingHandle, const [TArray](API\Runtime\Core\Containers\TArray)< [UActorComponent](API\Runtime\Engine\Components\UActorComponent) * > & HoveringOverHandles, float AnimationAlpha, float GizmoScale, const float GizmoHoverScale, const float GizmoHoverAnimationDuration, bool & bOutIsHoveringOrDraggingThisHandleGroup )